They struck a rich seam of iron ore.
他们开出一个富铁矿层。
When they assay the ore, they found that they had discovered a very rich vein.
在对矿石进行分析后才知道，原来他们找到的是一个非常富的矿脉。
Baixiangshan iron mine ore magnetite-rich zone, high grade and high production value.
白象山铁矿区磁铁矿石储量丰富，品位较高，具有很高的开采价值。
Baixiangshan iron mine ore magnetite-rich zone, high grade and high production value.
白象山铁矿区磁铁矿石储量丰富，品位较高，具有很高的开采价值。
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